As we all know the machine is intimidating and frustrating. I am having the hardest time with the blow and getting the hum right. I keep getting abort early, abort hum, Today I got a grip of my fear and went outside to practice since I dare not drive anywhere in the car for the fear of being stranded somewhere, So I blew about 7 aborts , until finally I was able to get a pass so I drove the car up and down my driveway and then shut it off before my retest came up , and then waited to restart and blow again to test. I passed again and probably did this for 3 or 4 more times until I felt comfortable with the tecnique. Will this cause a violation doing this ? Because so far Its not reading that I have any ? Ok so now I get a letter in the mail telling me in April my license will cancel unless they get a court order stating device is no longer required .. Well I had to pay for a occupational license $300.00 the day of my plea to drive between hrs 10 am to 6 pm with the interlock installed, and will have it in my car till sept 2, 2012 , Am I supposed to send tx dept public safety a copy ?